/* roulang page: index */
:root{
  --red:#D6255B;
  --red-dark:#B41C4B;
  --teal:#17595F;
  --teal-soft:rgba(23,89,95,.08);
  --sand:#F6F2ED;
  --white:#FFFFFF;
  --ink:#121014;
  --muted:#6B6570;
  --line:#E6DFD7;
  --dark:#0D0B10;
  --radius:14px;
  --radius-lg:22px;
  --radius-pill:999px;
  --shadow-1:0 1px 2px rgba(18,16,20,.06);
  --shadow-2:0 14px 34px rgba(18,16,20,.12);
  --shadow-3:0 24px 60px rgba(18,16,20,.18);
  --maxw:1240px;
  --font:"PingFang SC","Hiragino Sans GB","Microsoft YaHei",system-ui,-apple-system,"Segoe UI",Roboto,sans-serif;
  --font-serif:"Noto Serif SC","Songti SC","SimSun",Georgia,serif;
  --pad:clamp(56px,7vw,112px);
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;
  font-family:var(--font);
  font-size:16.5px;
  line-height:1.8;
  color:var(--ink);
  background:var(--sand);
  -webkit-font-smoothing:antialiased;
}
h1,h2,h3,h4{margin:0;font-weight:700;letter-spacing:-.015em;line-height:1.25}
p{margin:0}
ul,ol{margin:0;padding:0;list-style:none}
img{max-width:100%;display:block;border:0}
a{color:inherit;text-decoration:none}
button,input{font:inherit;color:inherit}
figure{margin:0}
table{border-collapse:collapse;width:100%}
:focus-visible{outline:2px solid var(--red);outline-offset:3px;border-radius:6px}

.container{width:100%;max-width:var(--maxw);margin:0 auto;padding:0 24px}
.section{padding:var(--pad) 0}
.section-white{background:var(--white)}
.section-sand{background:var(--sand)}
.section-dark{background:var(--dark);color:#fff}
.section-dark .sec-sub,.section-dark p{color:rgba(255,255,255,.72)}

/* ---------- Header ---------- */
.site-header{
  position:sticky;top:0;z-index:80;
  background:#fff;
  border-bottom:1px solid var(--line);
  transition:box-shadow .3s ease,padding .3s ease;
}
.site-header.is-scrolled{box-shadow:0 6px 22px rgba(18,16,20,.09)}
.nav-wrap{display:flex;align-items:center;gap:24px;height:74px;transition:height .3s ease}
.site-header.is-scrolled .nav-wrap{height:64px}
.brand{display:flex;align-items:center;gap:10px;flex-shrink:0}
.brand-mark{
  width:34px;height:34px;border-radius:10px;background:var(--red);
  display:flex;align-items:center;justify-content:center;color:#fff;
  box-shadow:0 6px 16px rgba(214,37,91,.32);flex-shrink:0;
}
.brand-mark svg{width:18px;height:18px}
.brand-name{font-size:19px;font-weight:800;letter-spacing:.01em;white-space:nowrap}
.nav-links{display:flex;align-items:center;gap:4px;margin-left:12px}
.nav-links a{
  padding:9px 14px;border-radius:var(--radius-pill);
  font-size:15px;color:#3A3540;transition:background .22s,color .22s;
}
.nav-links a:hover{background:var(--sand);color:var(--ink)}
.nav-links a.is-active{background:rgba(214,37,91,.1);color:var(--red);font-weight:600}
.nav-right{display:flex;align-items:center;gap:12px;margin-left:auto}
.search-box{
  display:flex;align-items:center;gap:8px;
  background:var(--sand);border:1px solid transparent;
  border-radius:var(--radius-pill);padding:9px 16px;width:230px;
  transition:border-color .22s,background .22s;
}
.search-box:focus-within{border-color:var(--red);background:#fff}
.search-box svg{width:16px;height:16px;color:var(--muted);flex-shrink:0}
.search-box input{border:0;background:transparent;outline:none;width:100%;font-size:14px}
.search-box input::placeholder{color:#9A939C}
.nav-toggle{
  display:none;width:40px;height:40px;border:1px solid var(--line);background:#fff;
  border-radius:10px;align-items:center;justify-content:center;cursor:pointer;
}
.nav-toggle span{display:block;width:17px;height:2px;background:var(--ink);position:relative}
.nav-toggle span::before,.nav-toggle span::after{
  content:"";position:absolute;left:0;width:17px;height:2px;background:var(--ink);
}
.nav-toggle span::before{top:-5px}
.nav-toggle span::after{top:5px}

/* ---------- Buttons ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  padding:13px 26px;border-radius:var(--radius-pill);
  font-size:15px;font-weight:600;line-height:1;cursor:pointer;
  border:1px solid transparent;
  transition:transform .25s cubic-bezier(.22,.61,.36,1),background .25s,box-shadow .25s,border-color .25s,color .25s;
}
.btn .arrow{transition:transform .25s cubic-bezier(.22,.61,.36,1)}
.btn-primary{background:var(--red);color:#fff}
.btn-primary:hover{background:var(--red-dark);transform:translateY(-2px);box-shadow:0 12px 26px rgba(214,37,91,.32)}
.btn-primary:hover .arrow{transform:translateX(4px)}
.btn-ghost{border-color:rgba(23,89,95,.42);color:var(--teal);background:transparent}
.btn-ghost:hover{background:var(--teal-soft);border-color:var(--teal);transform:translateY(-2px)}
.btn-ghost-light{border-color:rgba(255,255,255,.38);color:#fff;background:transparent}
.btn-ghost-light:hover{background:rgba(255,255,255,.12);border-color:rgba(255,255,255,.7);transform:translateY(-2px)}
.btn-sm{padding:10px 18px;font-size:14px}
.btn-lg{padding:16px 34px;font-size:16px}
.btn-block{width:100%}

/* ---------- Hero ---------- */
.hero{position:relative;background:var(--dark);color:#fff;overflow:hidden}
.hero-bg{
  position:absolute;inset:0;
  background:url('/assets/images/backpic/back-1.jpg') center/cover no-repeat;
  opacity:.34;
}
.hero::after{
  content:"";position:absolute;inset:0;
  background:linear-gradient(180deg,rgba(13,11,16,.86) 0%,rgba(13,11,16,.78) 45%,rgba(13,11,16,.95) 100%);
}
.hero-inner{position:relative;z-index:2;padding:clamp(56px,8vw,104px) 24px clamp(48px,6vw,80px);text-align:center}
.hero-tag{
  display:inline-flex;align-items:center;gap:8px;
  font-size:12px;letter-spacing:.18em;font-weight:600;
  color:#FFD9E5;background:rgba(214,37,91,.22);
  border:1px solid rgba(214,37,91,.45);
  padding:7px 16px;border-radius:var(--radius-pill);margin-bottom:26px;
}
.hero h1{
  font-family:var(--font-serif);
  font-size:clamp(30px,4.4vw,62px);
  line-height:1.12;letter-spacing:-.02em;
  max-width:1000px;margin:0 auto 22px;
}
.hero-lead{
  max-width:820px;margin:0 auto;
  font-size:clamp(15px,1.15vw,17px);line-height:1.9;
  color:rgba(255,255,255,.76);
}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;justify-content:center;margin:32px 0 46px}
.hero-stage{
  display:grid;grid-template-columns:1fr 1.55fr 1fr;
  gap:24px;align-items:center;text-align:left;
}
.stage-side{display:flex;flex-direction:column;gap:16px}
.value-point{
  display:flex;gap:14px;align-items:flex-start;
  background:rgba(255,255,255,.055);
  border:1px solid rgba(255,255,255,.11);
  border-radius:var(--radius);padding:18px 18px 16px;
  transition:transform .3s cubic-bezier(.22,.61,.36,1),background .3s,border-color .3s;
}
.value-point:hover{transform:translateY(-4px);background:rgba(255,255,255,.09);border-color:rgba(214,37,91,.5)}
.vp-num{
  font-family:var(--font-serif);font-size:22px;font-weight:700;line-height:1;
  color:var(--red);flex-shrink:0;padding-top:2px;
}
.value-point h3{font-size:15.5px;margin-bottom:5px;color:#fff}
.value-point p{font-size:13.5px;line-height:1.65;color:rgba(255,255,255,.62)}
.stage-figure{
  position:relative;border-radius:var(--radius-lg);overflow:hidden;
  border:1px solid rgba(255,255,255,.14);
  box-shadow:var(--shadow-3);
}
.stage-figure img{width:100%;aspect-ratio:16/10;object-fit:cover;background:#231F27}
.stage-figure::after{
  content:"";position:absolute;inset:0;
  background:linear-gradient(180deg,rgba(13,11,16,0) 50%,rgba(13,11,16,.55) 100%);
}
.stage-caption{
  position:absolute;left:20px;bottom:16px;z-index:2;
  font-size:13px;letter-spacing:.06em;color:rgba(255,255,255,.88);
}
.hero-note{
  margin-top:40px;font-size:13.5px;color:rgba(255,255,255,.55);
  display:flex;flex-wrap:wrap;gap:10px 26px;justify-content:center;
}
.hero-note span{display:inline-flex;align-items:center;gap:7px}
.dot{width:6px;height:6px;border-radius:50%;background:var(--red);display:inline-block}

/* ---------- Section head ---------- */
.sec-head{max-width:740px;margin-bottom:clamp(32px,4vw,52px)}
.kicker{
  display:inline-block;font-size:12px;letter-spacing:.18em;font-weight:700;
  color:var(--red);margin-bottom:14px;
}
.sec-head h2{font-family:var(--font-serif);font-size:clamp(24px,2.6vw,36px);line-height:1.25;margin-bottom:14px}
.sec-sub{color:var(--muted);font-size:16px}
.sec-head.center{margin-left:auto;margin-right:auto;text-align:center}

/* ---------- Value strip ---------- */
.value-strip{display:grid;grid-template-columns:repeat(4,1fr);gap:26px}
.strip-item{position:relative;padding-top:22px;border-top:2px solid var(--line);transition:border-color .3s}
.strip-item:hover{border-color:var(--red)}
.strip-num{
  font-family:var(--font-serif);font-size:clamp(38px,4.6vw,58px);font-weight:700;
  line-height:1;color:var(--red);opacity:.9;display:block;margin-bottom:14px;
}
.strip-item h3{font-size:17px;margin-bottom:8px}
.strip-item p{color:var(--muted);font-size:14.5px;line-height:1.75}

/* ---------- Feature split ---------- */
.split{display:grid;grid-template-columns:1.05fr 1fr;gap:clamp(28px,4vw,64px);align-items:center}
.split.reverse .split-figure{order:2}
.split.reverse .split-body{order:1}
.split-figure{
  border-radius:var(--radius-lg);overflow:hidden;
  box-shadow:var(--shadow-2);border:1px solid var(--line);
}
.split-figure img{width:100%;aspect-ratio:4/3;object-fit:cover;background:var(--sand)}
.split-body h2{font-family:var(--font-serif);font-size:clamp(23px,2.4vw,33px);margin-bottom:16px}
.split-body > p{color:var(--muted);margin-bottom:24px}
.tick-list li{
  display:flex;gap:12px;align-items:flex-start;
  padding:12px 0;border-bottom:1px dashed var(--line);font-size:15.5px;
}
.tick-list li:last-child{border-bottom:0}
.tick-mark{
  width:20px;height:20px;border-radius:50%;background:var(--teal-soft);color:var(--teal);
  display:flex;align-items:center;justify-content:center;font-size:11px;font-weight:700;
  flex-shrink:0;margin-top:5px;
}
.split-actions{margin-top:26px;display:flex;gap:12px;flex-wrap:wrap}

/* ---------- Scene grid ---------- */
.scene-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:22px}
.scene-card{
  background:#fff;border:1px solid var(--line);border-radius:var(--radius);
  padding:28px 26px;box-shadow:var(--shadow-1);
  transition:transform .3s cubic-bezier(.22,.61,.36,1),box-shadow .3s,border-color .3s;
}
.scene-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-2);border-color:rgba(214,37,91,.32)}
.scene-icon{
  width:44px;height:44px;border-radius:12px;background:var(--teal-soft);color:var(--teal);
  display:flex;align-items:center;justify-content:center;margin-bottom:18px;
}
.scene-icon svg{width:22px;height:22px}
.scene-card h3{font-size:18px;margin-bottom:10px}
.scene-card p{color:var(--muted);font-size:14.8px}
.scene-meta{margin-top:16px;display:flex;gap:8px;flex-wrap:wrap}

/* ---------- Tags ---------- */
.tag{
  display:inline-flex;align-items:center;
  font-size:12.5px;line-height:1;padding:6px 12px;border-radius:var(--radius-pill);
  background:var(--sand);color:#5A5460;border:1px solid var(--line);
}
.tag-teal{background:var(--teal-soft);color:var(--teal);border-color:rgba(23,89,95,.18)}
.tag-red{background:rgba(214,37,91,.09);color:var(--red);border-color:rgba(214,37,91,.2)}
.tag-dark{background:rgba(255,255,255,.1);color:#fff;border-color:rgba(255,255,255,.18)}

/* ---------- Demo / steps ---------- */
.demo-grid{display:grid;grid-template-columns:1.4fr 1fr;gap:clamp(26px,3.4vw,52px);align-items:center}
.demo-figure{border-radius:var(--radius-lg);overflow:hidden;box-shadow:var(--shadow-3);border:1px solid var(--line)}
.demo-figure img{width:100%;aspect-ratio:16/11;object-fit:cover;background:#241F28}
.step-list li{display:flex;gap:16px;padding:18px 0;border-bottom:1px solid var(--line)}
.step-list li:last-child{border-bottom:0}
.step-num{
  font-family:var(--font-serif);font-size:18px;font-weight:700;color:var(--red);
  flex-shrink:0;width:38px;line-height:1.5;
}
.step-list h3{font-size:16.5px;margin-bottom:6px}
.step-list p{color:var(--muted);font-size:14.5px}

/* ---------- Time cards (ticket style) ---------- */
.time-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:20px}
.time-card{
  position:relative;background:#fff;border:1px solid var(--line);
  border-radius:var(--radius);padding:26px 22px;box-shadow:var(--shadow-1);
  transition:transform .3s cubic-bezier(.22,.61,.36,1),box-shadow .3s;
}
.time-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-2)}
.time-card::before,.time-card::after{
  content:"";position:absolute;width:14px;height:14px;border-radius:50%;
  background:var(--sand);border:1px solid var(--line);top:50%;transform:translateY(-50%);
}
.time-card::before{left:-8px}
.time-card::after{right:-8px}
.time-range{font-family:var(--font-serif);font-size:20px;font-weight:700;color:var(--teal);margin-bottom:10px;display:block}
.time-card h3{font-size:16px;margin-bottom:8px}
.time-card p{color:var(--muted);font-size:14.2px}
.time-status{
  margin-top:16px;display:inline-flex;align-items:center;gap:6px;
  font-size:12.5px;color:var(--red);
}

/* ---------- Case list ---------- */
.case-list{border-top:1px solid var(--line)}
.case-row{
  display:grid;grid-template-columns:64px 1fr 190px;gap:24px;align-items:center;
  padding:26px 0;border-bottom:1px solid var(--line);
  transition:background .3s,padding-left .3s;
}
.case-row:hover{background:#fff;padding-left:14px}
.case-index{font-family:var(--font-serif);font-size:22px;font-weight:700;color:var(--red)}
.case-row h3{font-size:17px;margin-bottom:6px}
.case-row p{color:var(--muted);font-size:14.6px}
.case-metric{text-align:right}
.case-metric strong{display:block;font-family:var(--font-serif);font-size:26px;color:var(--teal);line-height:1.2}
.case-metric span{font-size:13px;color:var(--muted)}

/* ---------- Pricing ---------- */
.price-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px;align-items:start}
.price-card{
  position:relative;background:#fff;border:1px solid rgba(255,255,255,.14);
  border-radius:var(--radius-lg);padding:34px 28px 30px;color:var(--ink);
  box-shadow:var(--shadow-2);
  transition:transform .3s cubic-bezier(.22,.61,.36,1),box-shadow .3s;
}
.price-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-3)}
.price-card::before,.price-card::after{
  content:"";position:absolute;width:18px;height:18px;border-radius:50%;
  background:var(--dark);top:78px;
}
.price-card::before{left:-10px}
.price-card::after{right:-10px}
.price-card.featured{border-color:var(--red);transform:translateY(-10px)}
.price-card.featured:hover{transform:translateY(-14px)}
.price-badge{
  position:absolute;top:-13px;left:50%;transform:translateX(-50%);
  background:var(--red);color:#fff;font-size:12px;letter-spacing:.1em;
  padding:6px 16px;border-radius:var(--radius-pill);white-space:nowrap;
}
.price-name{font-size:17px;font-weight:700;margin-bottom:6px}
.price-desc{font-size:13.5px;color:var(--muted);min-height:44px}
.price-amount{display:flex;align-items:flex-end;gap:6px;margin:18px 0 22px;padding-bottom:20px;border-bottom:1px dashed var(--line)}
.price-amount strong{font-family:var(--font-serif);font-size:42px;line-height:1;color:var(--ink)}
.price-amount em{font-style:normal;font-size:14px;color:var(--muted);padding-bottom:4px}
.price-feats li{display:flex;gap:10px;font-size:14.6px;padding:9px 0;color:#3B3641}
.price-feats .tick-mark{margin-top:6px}
.price-card .btn{margin-top:24px}

.compare-wrap{margin-top:56px;background:#fff;border:1px solid var(--line);border-radius:var(--radius-lg);overflow:hidden}
.compare-scroll{overflow-x:auto}
.compare-table{min-width:620px;font-size:14.8px}
.compare-table th,.compare-table td{padding:16px 22px;text-align:left;border-bottom:1px solid var(--line)}
.compare-table thead th{background:var(--sand);font-size:14px;letter-spacing:.04em;white-space:nowrap}
.compare-table tbody tr:last-child td{border-bottom:0}
.compare-table td:nth-child(n+2),.compare-table th:nth-child(n+2){text-align:center}
.compare-table tbody tr:hover{background:rgba(246,242,237,.6)}

/* ---------- Reviews ---------- */
.review-wall{columns:3;column-gap:22px}
.review-card{
  break-inside:avoid;background:#fff;border:1px solid var(--line);
  border-radius:var(--radius);padding:24px 22px;margin-bottom:22px;
  box-shadow:var(--shadow-1);transition:transform .3s cubic-bezier(.22,.61,.36,1),box-shadow .3s;
}
.review-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-2)}
.review-head{display:flex;align-items:center;gap:12px;margin-bottom:14px}
.avatar{
  width:38px;height:38px;border-radius:50%;flex-shrink:0;
  background:linear-gradient(135deg,var(--red),#F0749B);
  color:#fff;display:flex;align-items:center;justify-content:center;
  font-size:15px;font-weight:700;
}
.review-head strong{display:block;font-size:14.5px}
.review-head span{font-size:12.5px;color:var(--muted)}
.review-card p{font-size:14.6px;color:#3B3641}

/* ---------- Stat bar ---------- */
.stat-bar{
  display:grid;grid-template-columns:repeat(4,1fr);gap:24px;
  background:#fff;border:1px solid var(--line);border-radius:var(--radius-lg);
  padding:38px clamp(20px,3vw,44px);box-shadow:var(--shadow-1);
}
.stat-item{text-align:center;border-right:1px solid var(--line)}
.stat-item:last-child{border-right:0}
.stat-item strong{
  display:block;font-family:var(--font-serif);font-size:clamp(28px,3.2vw,42px);
  line-height:1.1;color:var(--red);margin-bottom:8px;
}
.stat-item span{font-size:14px;color:var(--muted)}

/* ---------- Partners ---------- */
.partner-band{
  display:flex;flex-wrap:wrap;gap:14px 34px;align-items:center;
  color:#9B949E;font-size:15px;letter-spacing:.04em;
  padding-top:8px;
}
.partner-band span{transition:color .25s}
.partner-band span:hover{color:var(--teal)}

/* ---------- Channel / category entry ---------- */
.channel-band{
  display:grid;grid-template-columns:1.15fr 1fr;gap:0;
  border-radius:var(--radius-lg);overflow:hidden;
  border:1px solid var(--line);box-shadow:var(--shadow-2);background:#fff;
}
.channel-media{position:relative;min-height:300px}
.channel-media img{width:100%;height:100%;object-fit:cover;position:absolute;inset:0}
.channel-media::after{content:"";position:absolute;inset:0;background:linear-gradient(120deg,rgba(13,11,16,.6),rgba(13,11,16,.15))}
.channel-body{padding:clamp(28px,3.4vw,48px)}
.channel-body h3{font-family:var(--font-serif);font-size:clamp(22px,2.3vw,30px);margin-bottom:14px}
.channel-body p{color:var(--muted);margin-bottom:22px}
.channel-tags{display:flex;flex-wrap:wrap;gap:8px;margin-bottom:26px}

/* ---------- Article list ---------- */
.article-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:22px}
.article-card{
  background:#fff;border:1px solid var(--line);border-radius:var(--radius);
  overflow:hidden;box-shadow:var(--shadow-1);display:flex;flex-direction:column;
  transition:transform .3s cubic-bezier(.22,.61,.36,1),box-shadow .3s,border-color .3s;
}
.article-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-2);border-color:rgba(214,37,91,.28)}
.article-card figure{overflow:hidden;background:var(--sand)}
.article-card img{width:100%;aspect-ratio:16/10;object-fit:cover;transition:transform .5s cubic-bezier(.22,.61,.36,1)}
.article-card:hover img{transform:scale(1.05)}
.article-body{padding:20px 20px 22px;display:flex;flex-direction:column;flex:1}
.article-meta{display:flex;align-items:center;gap:10px;font-size:12.5px;color:var(--muted);margin-bottom:12px}
.article-body h3{font-size:16.5px;line-height:1.5;margin-bottom:10px}
.article-body p{font-size:14.3px;color:var(--muted);flex:1}
.article-more{margin-top:16px;font-size:13.6px;color:var(--red);font-weight:600;display:inline-flex;align-items:center;gap:6px}
.article-card:hover .article-more{gap:10px}

/* ---------- FAQ ---------- */
.faq-list{max-width:900px;margin:0 auto;border-top:1px solid var(--line)}
.faq-item{border-bottom:1px solid var(--line)}
.faq-item summary{
  display:flex;align-items:center;justify-content:space-between;gap:20px;
  padding:24px 4px;cursor:pointer;list-style:none;
  font-size:16.8px;font-weight:600;transition:color .25s;
}
.faq-item summary::-webkit-details-marker{display:none}
.faq-item summary:hover{color:var(--red)}
.faq-plus{
  width:26px;height:26px;flex-shrink:0;position:relative;border-radius:50%;
  background:var(--sand);transition:background .25s,transform .3s;
}
.faq-plus::before,.faq-plus::after{
  content:"";position:absolute;background:var(--ink);left:50%;top:50%;
  transform:translate(-50%,-50%);transition:opacity .25s,background .25s;
}
.faq-plus::before{width:12px;height:2px}
.faq-plus::after{width:2px;height:12px}
.faq-item[open] .faq-plus{background:var(--red);transform:rotate(90deg)}
.faq-item[open] .faq-plus::before,.faq-item[open] .faq-plus::after{background:#fff}
.faq-item[open] .faq-plus::after{opacity:0}
.faq-body{padding:0 4px 26px;max-width:800px}
.faq-body p{color:var(--muted);font-size:15.4px}

/* ---------- Update bar ---------- */
.update-bar{
  display:flex;flex-wrap:wrap;gap:14px 30px;align-items:center;justify-content:space-between;
  border-top:1px solid var(--line);border-bottom:1px solid var(--line);
  padding:22px 4px;font-size:14.4px;color:var(--muted);
}
.update-bar strong{color:var(--ink);font-weight:600}

/* ---------- Final CTA ---------- */
.cta-block{
  position:relative;background:var(--dark);color:#fff;overflow:hidden;
  border-radius:var(--radius-lg);
}
.cta-bg{position:absolute;inset:0;background:url('/assets/images/backpic/back-4.jpg') center/cover no-repeat;opacity:.26}
.cta-block::after{
  content:"";position:absolute;inset:0;
  background:linear-gradient(90deg,rgba(13,11,16,.94) 0%,rgba(13,11,16,.82) 55%,rgba(13,11,16,.66) 100%);
}
.cta-inner{
  position:relative;z-index:2;display:grid;grid-template-columns:1.1fr .9fr;
  gap:clamp(28px,4vw,60px);padding:clamp(36px,5vw,68px);align-items:center;
}
.cta-inner h2{font-family:var(--font-serif);font-size:clamp(24px,2.7vw,36px);margin-bottom:16px}
.cta-inner p{color:rgba(255,255,255,.72);margin-bottom:26px}
.cta-points{display:flex;flex-wrap:wrap;gap:10px}
.cta-form{background:rgba(255,255,255,.06);border:1px solid rgba(255,255,255,.14);border-radius:var(--radius-lg);padding:28px 26px}
.cta-form h3{font-size:17px;margin-bottom:6px}
.cta-form .form-note{font-size:13.4px;color:rgba(255,255,255,.6);margin-bottom:18px}
.field{margin-bottom:14px}
.field label{display:block;font-size:13px;color:rgba(255,255,255,.7);margin-bottom:7px}
.field input{
  width:100%;padding:13px 16px;border-radius:10px;
  border:1px solid rgba(255,255,255,.22);background:rgba(255,255,255,.06);
  color:#fff;outline:none;transition:border-color .25s,background .25s;
}
.field input::placeholder{color:rgba(255,255,255,.42)}
.field input:focus{border-color:var(--red);background:rgba(255,255,255,.1)}
.form-tip{font-size:12.6px;color:rgba(255,255,255,.5);margin-top:12px;line-height:1.7}

/* ---------- Footer ---------- */
.site-footer{background:var(--dark);color:rgba(255,255,255,.68);padding:clamp(48px,6vw,80px) 0 0;margin-top:0}
.footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1.2fr;gap:40px;padding-bottom:48px}
.footer-brand .brand{margin-bottom:16px}
.footer-brand .brand-name{color:#fff}
.footer-brand p{font-size:14.4px;line-height:1.85;max-width:320px}
.footer-col h4{font-size:14.4px;color:#fff;letter-spacing:.06em;margin-bottom:18px}
.footer-col li{margin-bottom:11px}
.footer-col a{font-size:14.4px;transition:color .25s}
.footer-col a:hover{color:#fff}
.footer-sub p{font-size:14.2px;margin-bottom:16px}
.footer-sub form{display:flex;gap:8px}
.footer-sub input{
  flex:1;min-width:0;padding:11px 14px;border-radius:10px;
  border:1px solid rgba(255,255,255,.2);background:rgba(255,255,255,.06);
  color:#fff;outline:none;font-size:14px;
}
.footer-sub input::placeholder{color:rgba(255,255,255,.4)}
.footer-sub input:focus{border-color:var(--red)}
.footer-bottom{
  border-top:1px solid rgba(255,255,255,.1);
  padding:22px 0 26px;display:flex;flex-wrap:wrap;gap:10px 24px;
  align-items:center;justify-content:space-between;font-size:13.6px;
}
.footer-bottom a:hover{color:#fff}

/* ---------- Reveal animation ---------- */
.reveal{opacity:0;transform:translateY(12px);transition:opacity .45s cubic-bezier(.22,.61,.36,1),transform .45s cubic-bezier(.22,.61,.36,1)}
.reveal.is-in{opacity:1;transform:none}
@media (prefers-reduced-motion:reduce){
  .reveal{opacity:1;transform:none;transition:none}
  html{scroll-behavior:auto}
}

/* ---------- Responsive ---------- */
@media (max-width:1100px){
  .nav-links{gap:0}
  .nav-links a{padding:9px 10px;font-size:14.5px}
  .search-box{width:180px}
  .hero-stage{grid-template-columns:1fr;gap:18px}
  .stage-figure{order:-1}
  .stage-side{display:grid;grid-template-columns:repeat(2,1fr);gap:14px}
  .value-strip{grid-template-columns:repeat(2,1fr)}
  .time-grid{grid-template-columns:repeat(2,1fr)}
  .article-grid{grid-template-columns:repeat(2,1fr)}
  .review-wall{columns:2}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px}
}
@media (max-width:900px){
  .nav-toggle{display:flex}
  .search-box{display:none}
  .nav-links{
    position:fixed;top:74px;left:0;right:0;
    background:#fff;flex-direction:column;align-items:stretch;gap:0;
    padding:10px 24px 24px;border-bottom:1px solid var(--line);
    box-shadow:0 18px 34px rgba(18,16,20,.12);
    opacity:0;visibility:hidden;transform:translateY(-10px);
    transition:opacity .25s ease,transform .25s ease,visibility .25s;
  }
  .nav-links.open{opacity:1;visibility:visible;transform:none}
  .nav-links a{padding:14px 4px;border-bottom:1px solid var(--line);border-radius:0;font-size:15.5px}
  .nav-links a.is-active{background:transparent;color:var(--red)}
  .split,.split.reverse .split-figure,.split.reverse .split-body,
  .demo-grid,.channel-band,.cta-inner{grid-template-columns:1fr}
  .split.reverse .split-figure{order:0}
  .split.reverse .split-body{order:1}
  .price-grid{grid-template-columns:1fr;max-width:520px;margin:0 auto}
  .price-card.featured{transform:none}
  .price-card.featured:hover{transform:translateY(-4px)}
  .scene-grid{grid-template-columns:1fr}
  .channel-media{min-height:220px;position:relative}
  .case-row{grid-template-columns:48px 1fr;gap:16px}
  .case-metric{text-align:left;grid-column:2}
  .stat-bar{grid-template-columns:repeat(2,1fr);gap:28px 0}
  .stat-item:nth-child(2){border-right:0}
}
@media (max-width:640px){
  body{font-size:16px}
  .container{padding:0 18px}
  .value-strip{grid-template-columns:1fr;gap:22px}
  .time-grid{grid-template-columns:1fr}
  .article-grid{grid-template-columns:1fr}
  .review-wall{columns:1}
  .stage-side{grid-template-columns:1fr}
  .hero-actions{flex-direction:column;align-items:stretch}
  .hero-actions .btn{width:100%}
  .footer-grid{grid-template-columns:1fr}
  .footer-sub form{flex-direction:column}
  .case-row{padding:22px 0}
  .update-bar{flex-direction:column;align-items:flex-start;gap:10px}
  .compare-table th,.compare-table td{padding:13px 14px}
}

/* roulang page: category1 */
:root{
 --red:#D6255B;
 --red-dark:#B41C4B;
 --teal:#17595F;
 --teal-soft:rgba(23,89,95,.08);
 --sand:#F6F2ED;
 --white:#FFFFFF;
 --ink:#121014;
 --muted:#6B6570;
 --line:#E6DFD7;
 --dark:#0D0B10;
 --radius:14px;
 --radius-lg:22px;
 --radius-pill:999px;
 --shadow-1:0 1px 2px rgba(18,16,20,.06);
 --shadow-2:0 14px 34px rgba(18,16,20,.12);
 --shadow-3:0 24px 60px rgba(18,16,20,.18);
 --maxw:1240px;
 --font:"PingFang SC","Hiragino Sans GB","Microsoft YaHei",system-ui,-apple-system,"Segoe UI",Roboto,sans-serif;
 --font-serif:"Noto Serif SC","Songti SC","SimSun",Georgia,serif;
 --pad:clamp(56px,7vw,112px);
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
 margin:0;
 font-family:var(--font);
 font-size:16.5px;
 line-height:1.8;
 color:var(--ink);
 background:var(--sand);
 -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;border:0}
a{color:inherit;text-decoration:none}
button,input,select{font:inherit;color:inherit}
ul{margin:0;padding:0;list-style:none}
h1,h2,h3,h4{margin:0;font-family:var(--font-serif);font-weight:700;letter-spacing:-.01em}
p{margin:0}
.container{width:100%;max-width:var(--maxw);margin:0 auto;padding:0 24px}
.section{padding:var(--pad) 0}
.section-white{background:var(--white)}
.section-sand{background:var(--sand)}
.section-dark{background:var(--dark);color:#fff}
.sec-head{max-width:760px;margin-bottom:44px}
.sec-head.center{margin-left:auto;margin-right:auto;text-align:center}
.sec-tag{
 display:inline-block;font-size:12px;letter-spacing:.18em;font-weight:700;
 color:var(--red);background:rgba(214,37,91,.1);
 padding:6px 14px;border-radius:var(--radius-pill);margin-bottom:16px;
}
.sec-title{font-size:clamp(25px,3vw,38px);line-height:1.24}
.sec-sub{margin-top:14px;color:var(--muted);font-size:16px;line-height:1.85}

/* ---------- Header ---------- */
.site-header{
 position:sticky;top:0;z-index:80;
 background:#fff;
 border-bottom:1px solid var(--line);
 transition:box-shadow .3s ease;
}
.site-header.is-scrolled{box-shadow:0 6px 22px rgba(18,16,20,.09)}
.nav-wrap{display:flex;align-items:center;gap:24px;height:74px;transition:height .3s ease}
.site-header.is-scrolled .nav-wrap{height:64px}
.brand{display:flex;align-items:center;gap:10px;flex-shrink:0}
.brand-mark{
 width:34px;height:34px;border-radius:10px;background:var(--red);
 display:flex;align-items:center;justify-content:center;color:#fff;
 box-shadow:0 6px 16px rgba(214,37,91,.32);flex-shrink:0;
}
.brand-mark svg{width:18px;height:18px}
.brand-name{font-size:19px;font-weight:800;letter-spacing:.01em;white-space:nowrap}
.nav-links{display:flex;align-items:center;gap:4px;margin-left:12px}
.nav-links a{
 padding:9px 14px;border-radius:var(--radius-pill);
 font-size:15px;color:#3A3540;transition:background .22s,color .22s;
}
.nav-links a:hover{background:var(--sand);color:var(--ink)}
.nav-links a.is-active{background:rgba(214,37,91,.1);color:var(--red);font-weight:600}
.nav-right{display:flex;align-items:center;gap:12px;margin-left:auto}
.search-box{
 display:flex;align-items:center;gap:8px;
 background:var(--sand);border:1px solid transparent;
 border-radius:var(--radius-pill);padding:9px 16px;width:230px;
 transition:border-color .22s,background .22s;
}
.search-box:focus-within{border-color:var(--red);background:#fff}
.search-box svg{width:16px;height:16px;color:var(--muted);flex-shrink:0}
.search-box input{border:0;background:transparent;outline:none;width:100%;font-size:14px}
.search-box input::placeholder{color:#9A939C}
.nav-toggle{
 display:none;width:40px;height:40px;border:1px solid var(--line);background:#fff;
 border-radius:10px;align-items:center;justify-content:center;cursor:pointer;
}
.nav-toggle span{display:block;width:17px;height:2px;background:var(--ink);position:relative}
.nav-toggle span::before,.nav-toggle span::after{
 content:"";position:absolute;left:0;width:17px;height:2px;background:var(--ink);
}
.nav-toggle span::before{top:-5px}
.nav-toggle span::after{top:5px}

/* ---------- Buttons ---------- */
.btn{
 display:inline-flex;align-items:center;justify-content:center;gap:8px;
 padding:13px 26px;border-radius:var(--radius-pill);
 font-size:15px;font-weight:600;line-height:1;cursor:pointer;
 border:1px solid transparent;
 transition:transform .25s cubic-bezier(.22,.61,.36,1),background .25s,box-shadow .25s,border-color .25s,color .25s;
}
.btn .arrow{transition:transform .25s cubic-bezier(.22,.61,.36,1)}
.btn-primary{background:var(--red);color:#fff}
.btn-primary:hover{background:var(--red-dark);transform:translateY(-2px);box-shadow:0 12px 26px rgba(214,37,91,.32)}
.btn-primary:hover .arrow{transform:translateX(4px)}
.btn-ghost{border-color:rgba(23,89,95,.42);color:var(--teal);background:transparent}
.btn-ghost:hover{background:var(--teal-soft);border-color:var(--teal);transform:translateY(-2px)}
.btn-sm{padding:10px 18px;font-size:14px}
.btn-lg{padding:16px 34px;font-size:16px}
.btn:focus-visible{outline:2px solid var(--teal);outline-offset:3px}

/* ---------- 分类页头 ---------- */
.cat-head{
 position:relative;background:var(--white);
 border-bottom:1px solid var(--line);
 padding:38px 0 44px;
}
.cat-head::before{
 content:"";position:absolute;left:0;top:0;height:3px;width:100%;
 background:linear-gradient(90deg,var(--red) 0%,var(--red) 22%,var(--teal) 22%,var(--teal) 34%,transparent 34%);
}
.crumb{display:flex;align-items:center;gap:8px;font-size:13px;color:var(--muted);margin-bottom:18px}
.crumb a:hover{color:var(--red)}
.crumb span.sep{color:#C9C1B8}
.cat-head-grid{display:grid;grid-template-columns:1.5fr .82fr;gap:48px;align-items:center}
.cat-head h1{font-size:clamp(28px,3.4vw,44px);line-height:1.2}
.cat-head h1 em{font-style:normal;color:var(--red)}
.cat-head .lead{margin-top:16px;color:var(--muted);font-size:16.5px;max-width:640px}
.cat-head .lead strong{color:var(--ink);font-weight:600}
.cat-mini{
 display:flex;gap:14px;align-items:center;margin-top:26px;flex-wrap:wrap;
}
.cat-mini .mini-item{
 display:flex;align-items:center;gap:8px;font-size:14px;color:var(--teal);
 background:var(--teal-soft);border-radius:var(--radius-pill);padding:8px 16px;
}
.cat-figure{
 position:relative;border-radius:var(--radius-lg);overflow:hidden;
 box-shadow:var(--shadow-2);border:1px solid var(--line);
}
.cat-figure img{width:100%;aspect-ratio:4/3;object-fit:cover;background:var(--sand)}
.cat-figure figcaption{
 position:absolute;left:0;right:0;bottom:0;
 padding:26px 18px 14px;font-size:13px;color:#fff;
 background:linear-gradient(180deg,rgba(13,11,16,0) 0%,rgba(13,11,16,.82) 100%);
}

/* ---------- 工具条 ---------- */
.toolbar{
 background:var(--white);border-bottom:1px solid var(--line);
 padding:16px 0;position:sticky;top:64px;z-index:40;
}
.toolbar-inner{display:flex;align-items:center;gap:18px;flex-wrap:wrap}
.chips{display:flex;gap:8px;overflow-x:auto;padding:2px 0;flex:1 1 auto;scrollbar-width:none}
.chips::-webkit-scrollbar{display:none}
.chip{
 flex:0 0 auto;padding:8px 16px;border-radius:var(--radius-pill);
 border:1px solid var(--line);background:#fff;font-size:14px;color:#3A3540;
 cursor:pointer;transition:all .22s;
}
.chip:hover{border-color:var(--teal);color:var(--teal)}
.chip.is-on{background:var(--ink);border-color:var(--ink);color:#fff;font-weight:600}
.tool-right{display:flex;align-items:center;gap:14px;margin-left:auto}
.select-wrap{position:relative}
.select-wrap select{
 appearance:none;border:1px solid var(--line);background:#fff;
 border-radius:var(--radius-pill);padding:9px 38px 9px 16px;font-size:14px;
 cursor:pointer;transition:border-color .22s;
}
.select-wrap select:focus{border-color:var(--red);outline:none}
.select-wrap::after{
 content:"";position:absolute;right:16px;top:50%;width:7px;height:7px;
 border-right:1.6px solid var(--muted);border-bottom:1.6px solid var(--muted);
 transform:translateY(-70%) rotate(45deg);pointer-events:none;
}
.result-count{font-size:14px;color:var(--muted);white-space:nowrap}
.result-count b{color:var(--red);font-size:16px}

/* ---------- 列表卡片 ---------- */
.card-grid{
 display:grid;grid-template-columns:repeat(3,1fr);gap:28px;
}
.card{
 background:#fff;border:1px solid var(--line);border-radius:var(--radius);
 overflow:hidden;display:flex;flex-direction:column;
 box-shadow:var(--shadow-1);
 transition:transform .3s cubic-bezier(.22,.61,.36,1),box-shadow .3s,border-color .3s;
}
.card:hover{transform:translateY(-4px);box-shadow:var(--shadow-2);border-color:#DED5CA}
.card-media{position:relative;display:block;overflow:hidden;background:var(--sand)}
.card-media img{width:100%;aspect-ratio:16/9;object-fit:cover;transition:transform .5s cubic-bezier(.22,.61,.36,1)}
.card:hover .card-media img{transform:scale(1.045)}
.card-badge{
 position:absolute;left:12px;top:12px;font-size:12px;letter-spacing:.06em;
 background:var(--red);color:#fff;border-radius:var(--radius-pill);padding:5px 12px;
}
.card-badge.teal{background:var(--teal)}
.card-body{padding:20px 20px 22px;display:flex;flex-direction:column;gap:10px;flex:1 1 auto}
.card-body h3{font-size:18px;line-height:1.45}
.card-body h3 a:hover{color:var(--red)}
.card-body p{font-size:14.5px;color:var(--muted);line-height:1.78;flex:1 1 auto}
.card-meta{display:flex;align-items:center;gap:10px;font-size:13px;color:#8A838C;padding-top:4px;border-top:1px dashed var(--line);margin-top:2px;padding-top:12px}
.card-meta .tagline{color:var(--teal)}
.dot{width:4px;height:4px;border-radius:50%;background:#CFC7BD}
.more-row{display:flex;justify-content:center;margin-top:52px}

/* ---------- 编辑精选 ---------- */
.pick-row{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.pick{
 display:flex;gap:16px;background:#fff;border:1px solid var(--line);
 border-radius:var(--radius);padding:16px;box-shadow:var(--shadow-1);
 transition:transform .3s cubic-bezier(.22,.61,.36,1),box-shadow .3s;
}
.pick:hover{transform:translateY(-4px);box-shadow:var(--shadow-2)}
.pick img{width:96px;height:96px;object-fit:cover;border-radius:10px;flex-shrink:0;background:var(--sand)}
.pick h3{font-size:16px;line-height:1.5;margin-bottom:6px}
.pick h3 a:hover{color:var(--red)}
.pick p{font-size:13.5px;color:var(--muted);line-height:1.7}
.pick .pick-label{font-size:12px;letter-spacing:.14em;color:var(--teal);font-weight:700;margin-bottom:6px;display:block}

/* ---------- 数据条 ---------- */
.stat-bar{
 background:#fff;border:1px solid var(--line);border-radius:var(--radius-lg);
 padding:36px 32px;display:grid;grid-template-columns:repeat(4,1fr);gap:24px;
 box-shadow:var(--shadow-1);
}
.stat{text-align:center;position:relative}
.stat+.stat::before{
 content:"";position:absolute;left:0;top:14%;height:72%;width:1px;background:var(--line);
}
.stat b{display:block;font-size:clamp(26px,3.2vw,38px);font-family:var(--font-serif);color:var(--red);line-height:1.2}
.stat span{font-size:14px;color:var(--muted);display:block;margin-top:6px}

/* ---------- FAQ ---------- */
.faq-wrap{max-width:880px;margin:0 auto}
.accordion{background:transparent;border:0;margin:0}
.accordion .accordion-item{
 background:#fff;border:1px solid var(--line);border-radius:var(--radius);
 margin-bottom:12px;overflow:hidden;transition:box-shadow .3s,border-color .3s;
}
.accordion .accordion-item.is-active{border-color:#DED5CA;box-shadow:var(--shadow-1)}
.accordion .accordion-title{
 display:flex;align-items:center;justify-content:space-between;gap:16px;
 padding:20px 24px;font-size:16.5px;font-weight:600;font-family:var(--font);
 color:var(--ink);border:0;background:#fff;line-height:1.6;
}
.accordion .accordion-title:hover{color:var(--red);background:#fff}
.accordion .accordion-title::before{
 content:"";order:2;flex:0 0 auto;width:12px;height:12px;position:relative;
 background:
  linear-gradient(var(--red),var(--red)) center/12px 2px no-repeat;
 transition:transform .3s;
}
.accordion .accordion-item.is-active .accordion-title::before{
 background:
  linear-gradient(var(--red),var(--red)) center/12px 2px no-repeat;
 transform:rotate(45deg);
}
.accordion .accordion-content{
 padding:0 24px 22px;border:0;background:#fff;
 font-size:15.5px;color:var(--muted);line-height:1.85;
}

/* ---------- 标签云 ---------- */
.tag-cloud{display:flex;flex-wrap:wrap;gap:12px}
.tag-cloud a{
 padding:10px 20px;border-radius:var(--radius-pill);
 border:1px dashed #D8CFC5;background:#fff;font-size:14.5px;color:#3A3540;
 transition:all .22s;
}
.tag-cloud a:hover{border-style:solid;border-color:var(--red);color:var(--red);transform:translateY(-2px)}
.tag-cloud a span{color:var(--muted);font-size:13px;margin-left:6px}

/* ---------- 延伸阅读 ---------- */
.read-list{border-top:1px solid var(--line)}
.read-item{
 display:grid;grid-template-columns:88px 1fr auto;gap:20px;align-items:center;
 padding:22px 0;border-bottom:1px solid var(--line);
 transition:background .25s;
}
.read-item:hover{background:rgba(255,255,255,.7)}
.read-item .rn{font-family:var(--font-serif);font-size:24px;color:#CFC7BD}
.read-item h3{font-size:17px;margin-bottom:6px}
.read-item h3 a:hover{color:var(--red)}
.read-item p{font-size:14px;color:var(--muted)}
.read-item .rt{font-size:13px;color:var(--teal);white-space:nowrap}

/* ---------- CTA ---------- */
.cta-panel{
 background:var(--dark);color:#fff;border-radius:var(--radius-lg);
 padding:clamp(36px,5vw,64px);display:grid;grid-template-columns:1.15fr .85fr;
 gap:44px;align-items:center;position:relative;overflow:hidden;
}
.cta-panel::after{
 content:"";position:absolute;right:-120px;top:-120px;width:340px;height:340px;
 border-radius:50%;background:radial-gradient(circle,rgba(214,37,91,.4) 0%,rgba(214,37,91,0) 70%);
}
.cta-panel h2{font-size:clamp(24px,2.8vw,34px);line-height:1.3;position:relative;z-index:2}
.cta-panel p{margin-top:14px;color:rgba(255,255,255,.72);font-size:16px;position:relative;z-index:2}
.cta-form{position:relative;z-index:2}
.cta-form .row{display:flex;gap:12px}
.cta-form input{
 flex:1 1 auto;border:1px solid rgba(255,255,255,.22);background:rgba(255,255,255,.06);
 border-radius:var(--radius-pill);padding:14px 20px;color:#fff;font-size:15px;outline:none;
 transition:border-color .22s,background .22s;
}
.cta-form input::placeholder{color:rgba(255,255,255,.5)}
.cta-form input:focus{border-color:var(--red);background:rgba(255,255,255,.1)}
.cta-form .hint{margin-top:12px;font-size:13px;color:rgba(255,255,255,.55)}

/* ---------- Footer ---------- */
.site-footer{background:var(--dark);color:#fff;padding:72px 0 32px;margin-top:0}
.footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1.3fr;gap:40px}
.footer-brand .brand{margin-bottom:18px}
.footer-brand .brand-name{color:#fff}
.footer-brand p{font-size:14.5px;color:rgba(255,255,255,.6);line-height:1.85;max-width:320px}
.footer-col h4{font-family:var(--font);font-size:15px;letter-spacing:.06em;margin-bottom:18px;color:#fff}
.footer-col ul li{margin-bottom:11px}
.footer-col ul li a{font-size:14.5px;color:rgba(255,255,255,.62);transition:color .22s}
.footer-col ul li a:hover{color:var(--red)}
.footer-sub p{font-size:14px;color:rgba(255,255,255,.6);margin-bottom:16px;line-height:1.75}
.footer-sub form{display:flex;gap:10px}
.footer-sub input{
 flex:1 1 auto;min-width:0;border:1px solid rgba(255,255,255,.2);background:rgba(255,255,255,.06);
 border-radius:var(--radius-pill);padding:11px 18px;color:#fff;font-size:14px;outline:none;
 transition:border-color .22s;
}
.footer-sub input::placeholder{color:rgba(255,255,255,.45)}
.footer-sub input:focus{border-color:var(--red)}
.footer-bottom{
 margin-top:52px;padding-top:24px;border-top:1px solid rgba(255,255,255,.12);
 display:flex;justify-content:space-between;gap:16px;flex-wrap:wrap;
 font-size:13.5px;color:rgba(255,255,255,.45);
}

/* ---------- 动效 ---------- */
.reveal{opacity:0;transform:translateY(12px);transition:opacity .4s cubic-bezier(.22,.61,.36,1),transform .4s cubic-bezier(.22,.61,.36,1)}
.reveal.is-in{opacity:1;transform:translateY(0)}

/* ---------- 响应式 ---------- */
@media (max-width:1200px){
 .cat-head-grid{gap:34px}
 .card-grid{gap:22px}
}
@media (max-width:1023px){
 .nav-links{
  position:fixed;left:0;right:0;top:74px;
  flex-direction:column;align-items:stretch;gap:2px;
  background:#fff;padding:14px 24px 22px;
  border-bottom:1px solid var(--line);box-shadow:var(--shadow-2);
  display:none;margin-left:0;
 }
 .nav-links.is-open{display:flex}
 .nav-links a{padding:12px 14px;border-radius:10px}
 .nav-toggle{display:flex}
 .search-box{display:none}
 .nav-wrap{gap:14px}
 .toolbar{position:static}
 .cat-head-grid{grid-template-columns:1fr;gap:26px}
 .cat-figure{max-width:520px}
 .card-grid{grid-template-columns:repeat(2,1fr)}
 .pick-row{grid-template-columns:1fr;gap:16px}
 .stat-bar{grid-template-columns:repeat(2,1fr);gap:28px 16px;padding:30px 24px}
 .stat+.stat::before{display:none}
 .cta-panel{grid-template-columns:1fr;gap:28px}
 .footer-grid{grid-template-columns:1fr 1fr;gap:34px}
}
@media (max-width:640px){
 .container{padding:0 18px}
 .nav-wrap{height:64px}
 .site-header.is-scrolled .nav-wrap{height:60px}
 .nav-links{top:64px;padding:12px 18px 20px}
 .brand-name{font-size:17px}
 .cat-head{padding:26px 0 34px}
 .cat-head h1{font-size:26px}
 .card-grid{grid-template-columns:1fr}
 .toolbar-inner{gap:12px}
 .tool-right{margin-left:0;width:100%;justify-content:space-between}
 .read-item{grid-template-columns:1fr;gap:8px;padding:18px 0}
 .read-item .rn{font-size:18px}
 .read-item .rt{justify-self:start}
 .stat-bar{grid-template-columns:1fr 1fr}
 .cta-form .row{flex-direction:column}
 .footer-grid{grid-template-columns:1fr;gap:30px}
 .footer-sub form{flex-direction:column}
 .footer-bottom{flex-direction:column;gap:8px}
 .accordion .accordion-title{padding:16px 18px;font-size:15.5px}
 .accordion .accordion-content{padding:0 18px 18px}
}